UL 5B
Standard for Strut-Type Channel Raceways and Fittings

DETAILS
Edition Number:2SCC Approved:--
Edition Date:2004-04-14DOD Approved: --
Price Code:BANSI Approved: 2019-02-26
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover strut-type channel raceways and fittings for use only in dry locations and in accordance with the National Electrical Code, NFPA 70.

    1.2 Strut-type channel raceways of the following thicknesses are intended to enclose circuits operating at potentials not exceeding 600 volts between conductors:

    a)    Strut-type channel raceways that are entirely of metal having a channel (base) at least 0.071 inch (1.81 mm) thick and a metal closure strip (cover) at least 0.040 inch (1.02 mm) thick.

    b)    Strut-type channel raceways consisting of a nonmetallic closure strip (cover) on a metal channel (base) of the thickness indicated in 1.2(a).

    1.3 These requirements do not apply to cable trays, wireways, or surface metal or nonmetallic raceways.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 Undated references
            • 2.4 Installation
            • 2.5 Nonmetallic parts
            • 2.6 Boxes
          • 3 Glossary
        • CONSTRUCTION
          • 4 General
          • 5 Fittings
          • 6 Wiring Devices
          • 7 Grounding and Bonding
          • 8 Specific Materials and Dimensional Limits
          • 9 Corrosion Protection
            • 9.1 General
            • 9.2 Zinc coating
            • 9.3 Nonmetallic coating
        • PERFORMANCE
          • 10 Fixture Support Test
          • 11 Receptacle Secureness Test
          • 12 Security of Knockout Test
          • 13 Thickness of Zinc Coating Test
          • 14 Electrical Resistance Test
            • 14.1 Measured on individual pieces
            • 14.2 Measured across joints
          • 15 Fault Current Test
          • 16 Short Circuit Test
        • INSTALLATION INSTRUCTIONS
          • 17 Details
        • MARKINGS
          • 18 Details
    • APPENDIX A